diff --git a/env/env-iis.sh b/env/env-iis.sh
index a4ffb2190..1d29154c8 100644
--- a/env/env-iis.sh
+++ b/env/env-iis.sh
@@ -8,4 +8,4 @@ ROOTD=$(cd "$(dirname "${BASH_SOURCE[0]:-$0}")/.." && pwd)
 export PATH=/usr/pack/riscv-1.0-kgf/riscv64-gcc-11.2.0/bin:$PATH # RV64 GCC toolchain
 export SAFED_RISCV=/usr/pack/riscv-1.0-kgf/pulp-gcc-2.6.0/bin/riscv32-unknown-elf
 export PULPD_RISCV=/usr/pack/pulpsdk-1.0-kgf/artifactory/pulp-sdk-release/pkg/pulp_riscv_gcc/1.0.16/bin/riscv32-unknown-elf
-export QUESTA=questa-2022.3
+export QUESTA=questa-2023.4